Abstract
RTs were measured to two stimuli which were presented in a 2 ∶ 1 ratio. The mean RT was inversely related to the probability of stimulus presentation, but no difference was found when the mean RT was calculated conditional on Ss’ predictions of stimulus presentation. The probability effect in choice RT was interpreted as depending upon a weighted combination of fast RTs to correctly predicted stimuli and slow RTs to incorrectly predicted stimuli.
Article PDF
Avoid common mistakes on your manuscript.
References
BERNSTEIN, I. H., & REESE, C. Behavioral hypotheses and choice reaction time. Psychonomic Science, 1965, 3, 259–260.
ESTES, W. K. Probability learning. In A. W. Melton (Ed.), Categories of human learning. New York: Academic Press, 1964. Pp. 89–128.
FALMAGNE, J. C. Stochastic models for choice reaction time with applications to experimental results. Journal of Mathematical Psychology, 1965, 2, 77–124.
HINRICHS, J. V., & KRAINZ, P. L. Expectancy in choice reaction time: Stimulus or response anticipation? Journal of Experimental Psychology, 1970, 85, 330–334.
LAMING, D. R. J. Subjective probability in choice-reaction experiments. Journal of Mathematical Psychology, 1969, 6, 81–120.
SMITH, E. E. Choice reaction time: An analysis of the major theoretical positions. Psychological Bulletin, 1968, 69, 77–110.
Author information
Authors and Affiliations
Additional information
The assistance of S. M. Holtkamp and P. L. Krainz is gratefully acknowledged.
Rights and permissions
About this article
Cite this article
Hinrichs, J.V. Probability and expectancy in two-choice reaction time. Psychon Sci 21, 227–228 (1970). https://doi.org/10.3758/BF03332457
Published:
Issue Date:
DOI: https://doi.org/10.3758/BF03332457